Based on your key text 'download the new BirdFont 5.4.0', I understand that you are looking for a download link or information about the latest version of BirdFont.

BirdFont is an open-source font editor that allows users to create vector graphics and export TTF, EOT, and SVG fonts. It's free and available for Linux, Windows, and Mac OS.

As per your key text, I found some relevant information:

* The current version of BirdFont is 5.4.0.

* You can download the latest version from various sources, including Uptodown and other font editor websites.

* BirdFont has a commercial version with additional features such as support for color fonts, variable fonts, and OTF fonts.

Here are some possible ways to get the new BirdFont 5.4.0:

1. Visit the official BirdFont website: You can visit the official BirdFont website ('www.birdfont.org'(http://www.birdfont.org)) to download the latest version of BirdFont.

2. Uptodown: As mentioned in your text, you can also download BirdFont from Uptodown's website.

3. Font editor websites: Many font editor websites may offer BirdFont for download.

Please note that I couldn't find a direct download link for BirdFont 5.4.0. However, you can try visiting the above-mentioned sources to get the latest version of BirdFont.

If you have any further questions or need more assistance, feel free to ask!

Download the new BirdFont 5.4.0